EP3616450B1 - Positions de départ multiples en vue d'une transmission en liaison montante sur un spectre sans licence - Google Patents

Positions de départ multiples en vue d'une transmission en liaison montante sur un spectre sans licence Download PDF

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Publication number
EP3616450B1
EP3616450B1 EP18723071.9A EP18723071A EP3616450B1 EP 3616450 B1 EP3616450 B1 EP 3616450B1 EP 18723071 A EP18723071 A EP 18723071A EP 3616450 B1 EP3616450 B1 EP 3616450B1
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EP
European Patent Office
Prior art keywords
subframe
slot
wireless communication
communication device
full
Prior art date
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EP18723071.9A
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German (de)
English (en)
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EP3616450A1 (fr
Inventor
Yu Yang
Jung-Fu Cheng
Reem KARAKI
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1874—Buffer management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0006—Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA

Claims (15)

  1. Procédé de fonctionnement d'un dispositif de communication sans fil, comprenant :
    l'identification (S1305) d'une pluralité de positions de début candidates pour une transmission de liaison montante, UL, dans un spectre sans licence ;
    la sélection (S1310) d'au moins une position de début parmi la pluralité de positions de début candidates sur la base de points de début UL autonomes en fonction d'un résultat d'une procédure écouter avant de parler, LBT, réalisée par rapport au spectre sans licence ;
    si un canal n'est pas obtenu au niveau d'une frontière de sous-trame/fente mais est obtenu à l'une des autres positions de début en fonction du résultat LBT, la perforation (S1325, S1335) d'un bloc de transport, TB, complet autrement destiné à ladite sous-trame/fente et la transmission uniquement d'une partie dudit TB sur la base des ressources disponibles dans une sous-trame/fente partielle ; et
    le rejet d'une partie restante dudit TB ou la retransmission de la partie restante du TB dans l'une de sous-trames/fentes ultérieures.
  2. Procédé selon la revendication 1, comprenant en outre :
    si le canal est obtenu au niveau de la frontière de sous-trame/fente, la transmission (S1320) du TB complet sur une sous-trame/fente complète.
  3. Procédé selon la revendication 1, comprenant en outre :
    la retransmission (S1330) de la partie rejetée du TB dans une dernière sous-trame/fente de liaison montante planifiée en utilisant un identifiant de processus de demande de répétition automatique hybride, HARQ, identique à celui de la sous-trame/fente perforée ; ou
    comprenant en outre :
    la retransmission (S1330) du TB complet dans une dernière sous-trame/fente de liaison montante planifiée en utilisant un identifiant de processus de demande de répétition automatique hybride, HARQ, identique à celui de la sous-trame/fente perforée.
  4. Procédé selon la revendication 1, comprenant en outre :
    la retransmission (S1340) de manière autonome de la partie rejetée du TB dans une sous-trame/fente suivante après des sous-trames/fentes de liaison montante planifiées ; ou
    comprenant en outre :
    la retransmission (S1340) de manière autonome du TB complet dans une sous-trame/fente suivante après des sous-trames/fentes de liaison montante planifiées.
  5. Procédé selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    l'obtention d'un octroi UL depuis une station de base, eNB ; et
    la détermination (S1345) si le dispositif de communication sans fil est autorisé à transmettre de manière autonome après la sous-trame/fente de liaison montante planifiée sur la base de l'octroi UL provenant de l'eNB.
  6. Procédé selon la revendication 5, dans lequel le dispositif de communication sans fil est autorisé à transmettre de manière autonome après la sous-trame/fente de liaison montante planifiée, le procédé comprenant en outre :
    la transmission (S1350) de la partie rejetée du TB, si le dispositif de communication sans fil ne transmet pas une première sous-trame/fente complète ; ou
    dans lequel le dispositif de communication sans fil n'est pas autorisé à transmettre de manière autonome après la sous-trame/fente de liaison montante planifiée, le procédé comprenant en outre :
    l'attente (S1355) d'une planification de retransmission de sous-trame/fente complète ou partielle.
  7. Procédé selon la revendication 1, comprenant en outre :
    l'obtention d'une décision de planification de X sous-trames/fentes suivies d'une sous-trame/fente partielle ou complète prédéterminée.
  8. Procédé selon la revendication 7, dans lequel la planification d'une sous-trame/fente UL partielle est reçue par le dispositif de communication sans fil dans un octroi indiquant que le dispositif de communication sans fil doit arrêter une transmission UL dans la sous-trame/fente UL partielle à un point de fin UL antérieur au dernier symbole ; ou
    dans lequel le dispositif de communication sans fil ne transmet pas une première sous-trame/fente complète, le procédé comprenant en outre :
    la perforation (S1365) du TB pour la première sous-trame/fente ; et
    la retransmission (S1365) de la partie rejetée du TB ou du TB complet sur la sous-trame/fente prédéterminée planifiée à la fin d'une salve de transmission en utilisant le même identifiant de processus HARQ que la sous-trame/fente perforée.
  9. Procédé selon la revendication 7, dans lequel le dispositif de communication sans fil transmet une première sous-trame/fente complète, le procédé comprenant en outre :
    la transmission (S1370) avec un identifiant de processus de demande de répétition automatique hybride, HARQ, dans la sous-trame/fente prédéterminée différent de celui dans la première sous-trame/fente complète ; ou
    dans lequel le dispositif de communication sans fil transmet sur une première sous-trame/fente complète, le procédé comprenant en outre :
    l'interdiction (S1375) de transmettre sur la sous-trame/fente partielle ou complète prédéterminée.
  10. Procédé selon la revendication 1, comprenant en outre :
    la réduction (S1380) d'une taille de bloc de transport, TBS, d'une première sous-trame/fente s'il s'agit d'une transmission de sous-trame/fente partielle,
    dans lequel la réduction de la TBS de la première sous-trame/fente comprend la détermination de la TBS de la première sous-trame/fente sur la base de └ NPRB ∗ α ┘, où α est un rapport d'une sous-trame/fente partielle transmise sur une sous-trame/fente complète et └ x ┘ est une fonction de plancher.
  11. Procédé selon l'une quelconque des revendications 1 à 10, comprenant en outre :
    la prise en compte d'une sous-trame/fente après une transmission perforée dans une salve de transmission en tant qu'une sous-trame/fente de référence pour un ajustement de fenêtre de contention pour LBT.
  12. Dispositif de communication sans fil apte à :
    identifier une pluralité de positions de début candidates pour une transmission de liaison montante, UL, dans un spectre sans licence ;
    sélectionner au moins une position de début parmi la pluralité de positions de début candidates sur la base de points de début UL autonomes en fonction d'un résultat d'une procédure écouter avant de parler, LBT, réalisée par rapport au spectre sans licence ;
    si un canal n'est pas obtenu au niveau d'une frontière de sous-trame/fente mais est obtenu à l'une des autres positions de début en fonction du résultat LBT, perforer un bloc de transport, TB, complet autrement destiné à ladite sous-trame/fente et transmettre uniquement une partie dudit TB sur la base des ressources disponibles dans une sous-trame/fente partielle ; et
    rejeter une partie restante dudit TB ou retransmettre la partie restante du TB dans l'une de sous-trames/fentes ultérieures.
  13. Dispositif de communication sans fil selon la revendication 12, dans lequel le dispositif de communication sans fil est en outre apte à réaliser le procédé selon l'une quelconque des revendications 2 à 11.
  14. Programme d'ordinateur comprenant des instructions qui, lorsqu'elles sont exécutées sur au moins un processeur d'un dispositif de communication sans fil, amènent l'au moins un processeur à réaliser le procédé selon l'une quelconque des revendications 1 à 11.
  15. Support contenant le programme d'ordinateur selon la revendication 14, dans lequel le support est l'un parmi un signal électronique, un signal optique, un signal radio et un support de stockage lisible par ordinateur.
EP18723071.9A 2017-04-28 2018-04-27 Positions de départ multiples en vue d'une transmission en liaison montante sur un spectre sans licence Active EP3616450B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762491399P 2017-04-28 2017-04-28
PCT/IB2018/052949 WO2018198092A1 (fr) 2017-04-28 2018-04-27 Positions de départ multiples en vue d'une transmission en liaison montante sur un spectre sans licence

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EP3616450A1 EP3616450A1 (fr) 2020-03-04
EP3616450B1 true EP3616450B1 (fr) 2022-01-26

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US (1) US11184924B2 (fr)
EP (1) EP3616450B1 (fr)
CN (1) CN110832930B (fr)
WO (1) WO2018198092A1 (fr)

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WO2018198092A1 (fr) 2018-11-01
CN110832930B (zh) 2024-01-02
CN110832930A (zh) 2020-02-21
US20200187249A1 (en) 2020-06-11
US11184924B2 (en) 2021-11-23
EP3616450A1 (fr) 2020-03-04

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